#include <stdio.h>
typedef short int16_t;
static int16_t n;
static int16_t b;
int main(void) {
    n = 0;
    (n = n + 5);
    n *= 2;
    printf("%d\n", n);
    n -= 3;
    printf("%d\n", n);
    b = 10;
    n -= b / 2;
    printf("%d\n", n);

    return 0;
}
